Novak® XSE tritium dot dovetail front sight for earlier Colt 1911 model's with the dovetail that is closer to the front of the slide. Fits the XSE factory dovetail as a direct replacement (some minor fitting may be required). Front sight works with the Novak LMC 1911 rears. Please check our "Sights 101" section for more information on direct replacement front and rear sights.